crackead
Simeon Petkov
Hi guys
i have two bad problems
the first is this SMPS
one friend gave it to me without radiator so i put one but i had to insulate it
i think it's from a monitor
so it works, but when i turn it on i get a burst of power for about 1sec. and it shuts off
i think it may be screwed capacitor of feedback or startup resistor or not enough load
also i want to convert it to something like adjustabe lab smps
my bigger problem is this
http://www.filedropper.com/vide0205
i accidently measured the voltage on the primary cap. when it wan on resistance mode
http://www.8085projects.info/image.asp?picture=DMM Model schematic diagram using DT9208A.jpg
i heard a little pcsk noise
so can it be a resistor or op amp or transistor
please help
i have two bad problems
the first is this SMPS
one friend gave it to me without radiator so i put one but i had to insulate it
i think it's from a monitor
so it works, but when i turn it on i get a burst of power for about 1sec. and it shuts off
i think it may be screwed capacitor of feedback or startup resistor or not enough load
also i want to convert it to something like adjustabe lab smps
my bigger problem is this
http://www.filedropper.com/vide0205
i accidently measured the voltage on the primary cap. when it wan on resistance mode
http://www.8085projects.info/image.asp?picture=DMM Model schematic diagram using DT9208A.jpg
i heard a little pcsk noise
so can it be a resistor or op amp or transistor
please help
Attachments
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PICT0204.jpg -
PICT0203.jpg -
image_axd.jpg